Improvement in sewing-machines



' J. c. SPENCER.

Sewing Machine, No. 24,061. Patented Ma 17,1859.

' UNITED STAT S PATENT OFFICE.

JAMES o. SPENCER, or PHELPs, NEw YORK.

V IMPROVEMENT IN SEWING-MACHINES.

Specification forming part of Letters Patent No. 24,00 l, dated May 17,1-859.

T0 aZZ whom it may concern/.-

Be it known that 1, JAMES C. SPENCER, of the town 'of Phelps, in thecounty of Ontario and State of New York, have invented a new and usefulImprovement in the Construction of Sewing-Machines, and I do herebydeclare that the following is a full and exact description thereof,reference being had to the accompanying drawings, and to the letters'ofreference marked thereon.

The nature of my invention consists'in making a needle-bar and feedercombined, which will answer the purpose of moving the needle up anddown, and at the same time moving the cloth or material to be sewed.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

A A represent the frame, which can be made of cast-iron or other metal.I

B represents the plate, where the cloth is placed to be sewed.

0 represents the needle-bar and feeder.

F represents the needle.

V represents the feeder, which, with the needle, moves the cloth, andthe screws M M regulate the stitch by means of their action'upon the camor eccentric, (marked D,).which is represented bythe dotted lines inFig. 2; The pin E, connected with the cam or eccentric, passes throughthe slots S S and moves the needle-bar up and down. The needle 0 is heldto its place by the 13W6I part being made round and passing through ahole in the stationary projection r and the staples a u. The staples u uare so placed as to allowthe upper part of the needlesbar to worksidewise, so as to move the cloth. The screw 12 holds the needle in theslots made in the needle-bar.

J represents the crank K, a wire, one end of which passss around aneccentric on the shaft 0 and moves ona pinion at H, andthereby causesthe other end, which. holds the thread, to vibrate for the purpose ofthreading the needle.

G represents a spiral spring, connected with the rod X and the step Y,which holds the cloth to its place while being sewed.

H is a spool containing thethread, and is partially held to its placebythe spiral spring L and nut W. I

P is a slide which moves upon the wire K,-

through which'the thread passes, to accom I modate the thread to the eyeof the needle.

L represents a thumb-screw to attach the machine to a table.

v To show the operation of the above sewing machine, first place thecloth to be sewed under the step Y and upon the plate B. Take the threadas it passes through the hole at P t needle is up, the eccentric Dstrikes the screw M, which causes the needle and feeder to move alongthe length of a stitch. After the cloth is'moved the needle descends,and as it descends by means of the motion of the end of the wire K orthreader the thread is carried against the needle and slips into thenotch or beard on the needle, and the thread is carried down through thecloth and forms a loop.

Then, by the motion of the eccentric, the me dle is carried back, and asit goes up it passes 7 through the same loop that it formed as it camedown, and thereby forms a chain-stitch, and so continues to form stitchafter stitch. The length of the stitch is regulated by means of thescrew m.

What I claim as my invention, and desire to secure by Letters Patent,is-

The construction of a feeder and needle-bar in one piece or connectedtogether, and the combination of the eccentric D and pin Ewith theneedle-bar by means of the slot S, for the purposes herein specified,hereby disclaiming all right to Letters Patent for the other parts ofsaid machine.

V JAS. O. SPENCER.

\Vitnesses:

O. E. HOBLY, O. H. CARPENTER.

